Abstract: A circuit breaker includes a plurality of pole assemblies, each having a movable contact and a stationary contact. A bellcrank assembly is associated with each pole assembly. Each bellcrank assembly includes a bellcrank lever including a cylindrical body and at least one radially extending arm. The radially extending arm is mechanically interrelated with the movable contact so that rotation of the bellcrank lever selectively causes the movable contact to engage or disengage the stationary contact. At least one of the bellcrank lever radially extending arms is relatively more flexible than the other bellcrank lever radially extending arms.

Abstract: An arrangement is disclosed for configuring an intelligent electronic device, having a configuration unit configured to provide a plurality of function blocks into a visual representation of a configuration of the intelligent electronic device. Each function block is configured for executing a function in the intelligent electronic device and has a predetermined set of connection interfaces for connecting the function block with other function blocks or external variables. A checking unit is configured to check, for a function block, a completion status of the connections of the function block in the configuration, and an indicating unit is configured to provide a visual indication in the visual representation to indicate the completion status of the connections of the function block.